Portable vocal accompaniment machine



FIG. 1 is a perspective view of a portable vocal accompaniment machine, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front perspective view of FIG. 1, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 9 is a front perspective view of FIG. 1, the broken lines are for illustrative purposes only and forms no part of the claimed design; and,

FIG. 10 is a front perspective view of FIG. 1, the broken lines are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portable vocal accompaniment machine, as shown and described. 